Free Test Concepts of inheritanc... – C++ Lan...

Q1: What is multilevel inheritance?

A. Derived class inherits from another derived class B. A class inherits from multiple base classes C. A class inherits from itself D. No inheritance at all

Q2: In multilevel inheritance, which class is the base class?

A. The class at the top of the inheritance chain B. The last derived class C. The middle class D. There is no base class

Q3: How is constructor call sequence in multilevel inheritance?

A. Base class constructor, then intermediate, then derived B. Derived class constructor first C. Only base class constructor D. Random order

Q4: If class C inherits from class B and class B inherits from class A, which is the correct inheritance type?

A. Multilevel inheritance B. Multiple inheritance C. Hierarchical inheritance D. Single inheritance

Q5: Which of the following is a disadvantage of multilevel inheritance?

A. Increased complexity and debugging difficulty B. Memory waste C. Limited code reuse D. No polymorphism support

Q6: Can multilevel inheritance lead to ambiguity?

A. Yes, if base classes have same members B. No, never C. Only in single inheritance D. Only in hybrid inheritance

Q7: What keyword is used to inherit a class in C++?

A. public B. private C. protected D. All of the above

Q8: How many levels of inheritance can C++ support?

A. Unlimited B. Only 3 levels C. Only 2 levels D. None

Q9: Which of the following best describes hierarchical inheritance?

A. One base class, many derived classes B. Multiple base classes, one derived class C. Derived class inheriting from another derived class D. No inheritance

Q10: Which is true about destructors in multilevel inheritance?

A. Destructors are called in reverse order of constructors B. Only base class destructor is called C. Derived class destructor is called first always D. Destructor is not called

Q11: Is multilevel inheritance supported by C++?

A. Yes B. No C. Only in C++11 D. Only in C++20

Q12: In multilevel inheritance, can derived class access private members of base class?

A. No, only public and protected B. Yes, all members C. Only static members D. Only friend functions

Q13: Which of the following is an example of multilevel inheritance?

A. class A {}; class B : public A {}; class C : public B {}; B. class A {}; class B {}; class C : public A, public B {}; C. class A {}; class B : public A {}; class C {}; D. class A {}; class B {}; class C {};

Q14: Which function calls can be ambiguous in multilevel inheritance?

A. Functions with same name in multiple base classes B. Functions declared virtual C. Static functions D. Inline functions

Q15: What happens if a member function is overridden in multilevel inheritance?

A. Derived class version is called B. Base class version is called always C. Compile-time error D. Runtime error

Q16: Can virtual functions be used in multilevel inheritance?

A. Yes B. No C. Only in multiple inheritance D. Only in single inheritance

Q17: What is a key feature of multilevel inheritance?

A. Inheritance chain involving more than two classes B. Only one level of inheritance C. Inheritance without base class D. No constructor calls

Q18: Which of these is NOT a characteristic of multilevel inheritance?

A. Derived class can have access to members of all base classes up the chain B. Derived class can call base class constructors C. Base classes can inherit from derived classes D. Destructors called in reverse order

Q19: Does multilevel inheritance support code reusability?

A. Yes B. No C. Only partially D. Not at all

Q20: In multilevel inheritance, how is data member hiding resolved?

A. Using scope resolution operator B. Using friend functions C. Using templates D. Using inline functions

Quiz for Concepts of inheritance and types of inheritance multilevel